It's great that Dropbox allows you to access a synced bucket of files on your several computers so you know you're always working with the latest and greatest, but if you're using a computer where you can't install Dropbox permanently, this portable version lets you enjoy the benefits without hassling with Dropbox's web-based access, where the process of editing and syncing files is much more clumsy. The application isn't perfect, and requires an attentive installation process, but if you can get it up and running, it's a great option for getting more from Dropbox. Thanks Mike!